Mom's Got a Date With a Vampire (2000)
When Adam and his big sister Chelsea both get grounded and can't go out with their friends, they come up with a plan to get their mom out of the house so they can sneak out. They set her up on a date with a mysterious man named Dimitri, but their younger brother, Taylor, discovers Dimitri is actually a vampire. He puts their mother in a trance, but after they call out to her after finding her in his mansion, her trance is broken by their true love. She throws Dimitri in his coffin to be shipped away to a sunny location and the family manages to get home in time for breakfast.